LU(w/o STI)-54

Oil Level Switch

LUBRICATION

13.Oil Level Switch

A: REMOVAL

1. WHEN REMOVING FRONT CROSSMEMBER

1) Remove the front crossmember. <Ref. to FS-22, REMOVAL, Front Crossmember.>

2) Remove clip (A) from the oil pan upper, and remove the oil level switch.

2. WHEN NOT REMOVING FRONT CROSSMEMBER

1) Remove the striker - front hood. <Ref. to EB-11, DISASSEMBLY, Front Hood.>

2) Fully open the front hood. <Ref. to NT-20, FRONT HOOD DAMPER STAY, NOTE, Note.>

3) Remove the collector cover.

(1) Remove the clips (A).

(2) Hold the shaded area (B) by hand and carefully pull the RH side (C) upward.

(3) Hold the shaded area (D) by hand and carefully pull the LH side (E) upward.

4) Disconnect the ground terminal from battery sensor. <Ref. to NT-5, BATTERY, NOTE, Note.>

5) Remove the air intake duct. <Ref. to IN(w/o STI)-22, REMOVAL, Air Intake Duct.>

LU-02912

(A)

EX-03204

(A)

(B)

(C)

(E)

(D)

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LU(w/o STI)-55

Oil Level Switch

LUBRICATION

6) Remove the clips (A) and (B) which secure the engine harness and bulkhead harness to the bracket, and

remove the bolt which secures the engine control module (ECM) to the bracket.

7) Pull out the engine control module (ECM) from the bracket, and move it to a location that does not interfere

operation.

NOTE:

When performing the pulling out operation, pay attention not to apply excessive load to the breather filter por-

tion (a) in order to avoid the damage.

8) Drain the engine oil. <Ref. to LU(w/o STI)-11, REPLACEMENT, Engine Oil.>

9) Remove the front exhaust pipe. <Ref. to EX(w/o STI)-9, REMOVAL, Front Exhaust Pipe.>

IN-03579

(B)

(A)

IN-03580

(a)

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LU(w/o STI)-56

Oil Level Switch

LUBRICATION

10) Disconnect the oil level switch connector from the engine harness, and remove the clip (A) securing the

harness.

11) Remove the nuts which secure the engine mounting to the front crossmember.

12) Remove the electric power steering gearbox. <Ref. to PS-56, REMOVAL, Electric Power Steering Gear-

box.>

13) Remove the front drive shaft LH. <Ref. to DS-48, REMOVAL, Front Drive Shaft.>

14) Lower the vehicle.

15) Remove the intercooler. <Ref. to IN(w/o STI)-38, REMOVAL, Intercooler.>

16) Disconnect the connector (A) from the brake vacuum pump.

LU-03067

(A)

ME-07228

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LU(w/o STI)-57

Oil Level Switch

LUBRICATION

17) Disconnect connector (B) and terminal (C) from the generator, and remove the clip (D) securing the gen-

erator cord to the intake manifold.

18) Disconnect connector (A) from A/C compressor, and remove the generator cord from clip (B).

19) Remove the clip (C) securing the generator cord to the fuel pipe protector, and move the generator cord

to the left side wheel apron.

(D)

(C)

(B)

(A)

ME-07908

ME-07918

(B)

(A)

(C)

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LU(w/o STI)-58

Oil Level Switch

LUBRICATION

20) Remove the pitching stopper.

21) Lift up the vehicle.

22) Set the transmission jack to the transmission. (CVT model)

NOTE:

Be careful that the support plate of transmission jack does not touch the transmission oil pan.

23) Remove the rear crossmember and attach the ST. (CVT model)

ST 41099YC001 ST REAR MOUNT

Tightening torque:

T1: 35 N·m (3.6 kgf-m, 25.8 ft-lb)

T2: 70 N·m (7.1 kgf-m, 51.6 ft-lb)

24) Remove the transmission jack. (CVT model)

25) Lower the vehicle.

26) Remove the bolt (A) securing the transmission harness stay to the CVT. (CVT model)

NOTE:

This procedure is required to prevent the transmission connector from touching the A/C pressure hose during

engine lift-up.

ME-07877

ME-07912

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LU(w/o STI)-59

Oil Level Switch

LUBRICATION

27) Remove the air breather hose from the clip (B), and then remove the clip (B) from the pitching stopper

bracket. (CVT model)

NOTE:

This procedure is required to prevent the clip from touching the A/C pressure hose during engine lift-up.

28) Lift up the engine with a lifting device and wire ropes.

CAUTION:

When lifting up the engine, pay attention to the clearance of each part and be careful not to lift the en-

gine too much, in order to prevent damaging the vehicle.

ME-07914

(B)

(A)

ME-05105

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LU(w/o STI)-60

Oil Level Switch

LUBRICATION

29) Remove the engine mounting LH from the engine.

30) Remove clip (A) from the oil pan upper, and remove the oil level switch.

(A) Front side (B) Rear side

LU-03084

(A) (B)

LU-02912

(A)

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LU(w/o STI)-61

Oil Level Switch

LUBRICATION

B: INSTALLATION

1. WHEN FRONT CROSSMEMBER HAS BEEN REMOVED

1) Install the oil level switch and the clip (A) to the oil pan upper.

NOTE:

• Use new O-rings.

• Apply a coat of engine oil to the O-rings.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

2) Install the front crossmember. <Ref. to FS-26, INSTALLATION, Front Crossmember.>

LU-02912

(A)

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LU(w/o STI)-62

Oil Level Switch

LUBRICATION

2. WHEN FRONT CROSSMEMBER HAS NOT BEEN REMOVED

1) Install the oil level switch and the clip (A) to the oil pan upper.

NOTE:

• Use new O-rings.

• Apply a coat of engine oil to the O-rings.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

2) Install the engine mounting LH onto the engine.

Tightening torque:

35 N·m (3.6 kgf-m, 25.8 ft-lb)

(A) Front side (B) Rear side

LU-02912

(A)

LU-03084

(A) (B)

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LU(w/o STI)-63

Oil Level Switch

LUBRICATION

3) Lower the engine and remove the lifting device and wire ropes.

4) Install the clip (B) to the pitching stopper bracket, and then install the air breather hose to the clip (B). (CVT

model)

5) Install the bolt (A) which secures the transmission harness stay to the CVT. (CVT model)

Tightening torque:

15 N·m (1.6 kgf-m, 11.8 ft-lb)

6) Lift up the vehicle.

7) Set the transmission jack to the transmission. (CVT model)

NOTE:

Be careful that the support plate of transmission jack does not touch the transmission oil pan.

ME-05105

ME-07914

(B)

(A)

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LU(w/o STI)-64

Oil Level Switch

LUBRICATION

8) Remove the ST and install the rear crossmember. (CVT model)

ST 41099YC001 ST REAR MOUNT

Tightening torque:

T1: 18 N·m (1.8 kgf-m, 13.3 ft-lb)

T2: 35 N·m (3.6 kgf-m, 25.8 ft-lb)

T3: 70 N·m (7.1 kgf-m, 51.6 ft-lb)

9) Remove the transmission jack. (CVT model)

10) Lower the vehicle.

11) Install the pitching stopper.

Tightening torque:

T1: 50 N·m (5.1 kgf-m, 36.9 ft-lb)

T2: 58 N·m (5.9 kgf-m, 42.8 ft-lb)

12) Set the generator cord, and fix the generator cord to the fuel pipe protector using clip (C).

ME-07916

ME-07917

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LU(w/o STI)-65

Oil Level Switch

LUBRICATION

13) Install the generator cord to clip (B), and connect the connector (A) to A/C compressor.

14) Using clip (D), fix the generator cord to the generator cord stay, and connect the connector (B) and the

terminal (C) to the generator.

Tightening torque:

15 N·m (1.5 kgf-m, 11.1 ft-lb)

15) Connect the connector (A) to the brake vacuum pump.

16) Install the intercooler. <Ref. to IN(w/o STI)-41, INSTALLATION, Intercooler.>

17) Lift up the vehicle.

18) Install the electric power steering gearbox. <Ref. to PS-58, INSTALLATION, Electric Power Steering

Gearbox.>

19) Install the front drive shaft LH. <Ref. to DS-49, INSTALLATION, Front Drive Shaft.>

ME-07918

(B)

(A)

(C)

(D)

(C)

(B)

(A)

ME-07908

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LU(w/o STI)-66

Oil Level Switch

LUBRICATION

20) Install the nuts which hold the engine mounting to the crossmember.

NOTE:

• Use a new nut.

• Make sure that locators (a) of the engine mounting are securely inserted.

Tightening torque:

60 N·m (6.1 kgf-m, 44.3 ft-lb)

21) Connect the connector of oil level switch to the engine harness, and install the clip (A) securing the har-

ness.

22) Install the front exhaust pipe. <Ref. to EX(w/o STI)-19, INSTALLATION, Front Exhaust Pipe.>

ME-08112

(a)

LU-03067

(A)

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LU(w/o STI)-67

Oil Level Switch

LUBRICATION

23) Insert the engine control module (ECM) to the bracket.

24) Install the bolt which secures the engine control module (ECM) to the bracket, and then secure the en-

gine harness and bulkhead harness to the bracket with clips (A) and (B).

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

25) Install the air intake duct. <Ref. to IN(w/o STI)-22, INSTALLATION, Air Intake Duct.>

26) Connect the ground terminal to battery sensor. <Ref. to NT-5, BATTERY, NOTE, Note.>

27) Install the collector cover.

28) Refill the engine oil. <Ref. to LU(w/o STI)-11, REPLACEMENT, Engine Oil.>

29) Fill engine coolant. <Ref. to CO(w/o STI)-14, FILLING OF ENGINE COOLANT, REPLACEMENT, En-

gine Coolant.>

30) Set the front hood to the normal position. <Ref. to NT-20, FRONT HOOD DAMPER STAY, NOTE, Note.>

31) Install the striker - front hood. <Ref. to EB-15, ASSEMBLY, Front Hood.>

32) Close the front hood.

FU-08492

IN-03579

(B)

(A)

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LU(w/o STI)-68

Oil Level Switch

LUBRICATION

C: WIRING DIAGRAM

• Engine electrical system <Ref. to WI-162, WIRING DIAGRAM, Engine Electrical System.>

• CAN communication system <Ref. to WI-110, WIRING DIAGRAM, CAN Communication System.>

E158

B134

E130

TFT

i10

B134

2625 2827 3029 3231 34

1413 1615 1817 2019 22

3837 4039 4241 4443 46

4987

4847

3635

2423

1211

E158

3837

2625

1413

4241

3029

4847

3635

1211

i10

11 12

7856341

15 1613 14 19

21 23222426

27 28 29 30 31 32 33 34 35 36 37 38 39 40

LU-03190

ECM

OIL LEVEL SWITCH

CAN TRANSCEIVER & RECEIVER

MICRO COMPUTER

COMBINATION

METER

REF. TO GND

[e]

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LU(w/o STI)-69

Oil Level Switch

LUBRICATION

D: INSPECTION

1. INSPECTION WHEN LOW ENGINE OIL WARNING LIGHT ILLUMINATES ON LCD

Step Check Yes No

1 CHECK ENGINE OIL LEVEL. Is engine oil level normal? Go to step 2. Replace engine oil

or refill, and check

again while the oil

level is normal con-

dition. <Ref. to

LU(w/o STI)-11,

REPLACEMENT,

Engine Oil.>

To disable the low

engine oil warning,

install the spare

fuse at the delivery

mode fuse in the

main fuse box.

Then turn the igni-

tion switch to ON

(engine off) again,

to confirm the low

engine oil warning

is not displayed.

Remove the spare

fuse installed to fin-

ish.

NOTE:

The engine oil level

switch is normal if

the low engine oil

level warning is not

displayed with the

delivery mode fuse

inserted.

2 CHECK LAN SYSTEM. Has a DTC of the LAN system

been input?

Perform the diag-

nosis according to

DTC.

Go to step 3.

3 CHECK OIL LEVEL SWITCH CIRCUIT.

1) Turn the ignition switch to ON (engine OFF).

2) Read the current data for engine in the Sub-

aru Select Monitor to confirm the item for “Oil

level switch”. <Ref. to EN(w/o STI)(diag)-37,

DISPLAY CURRENT ENGINE DATA, OPERA-

TION, Subaru Select Monitor.>

Is the “Oil level switch” signal

displayed in Subaru Select

Monitor HIGH?

To disable the low

engine oil warning,

install the spare

fuse at the delivery

mode fuse in the

main fuse box.

Then turn the igni-

tion switch to ON

(engine off) again,

to confirm the low

engine oil warning

is not displayed.

Remove the spare

fuse installed to fin-

ish.

NOTE:

The engine oil level

switch is normal if

the low engine oil

level warning is not

displayed with the

delivery mode fuse

inserted.

Go to step 4.

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LU(w/o STI)-70

Oil Level Switch

LUBRICATION

4 CHECK COMBINATION METER.

Perform the self-diagnosis of combination

meter to check if there are any faults in the com-

bination meter. <Ref. to IDI-6, OPERATION,

Combination Meter System.>

Is combination meter OK? Go to step 5. Replace the com-

bination meter.

<Ref. to IDI-13,

REMOVAL, Com-

bination Meter.>

5 CHECK SECURE CONNECTION OF CON-

NECTOR BETWEEN ENGINE HARNESS

AND OIL LEVEL SWITCH.

Is there any insecure connec-

tion?

Repair the connec-

tion condition.

Then, to disable

the low engine oil

warning display,

install the spare

fuse at the delivery

mode fuse in the

main fuse box.

Then turn the igni-

tion switch to ON

(engine OFF)

again to confirm

the low engine oil

warning is not dis-

played. Remove

the spare fuse

installed to finish.

NOTE:

The engine oil level

switch is normal if

the low engine oil

level warning is not

displayed with the

delivery mode fuse

inserted.

Go to step 6.

6 CHECK OIL LEVEL SWITCH.

1) Deliberately short circuits by connecting the

engine harness connector terminal and chassis

ground.

2) Turn the ignition switch to ON (engine OFF).

3) Read the current data for engine in the Sub-

aru Select Monitor to confirm the item for “Oil

level switch”. <Ref. to EN(w/o STI)(diag)-37,

DISPLAY CURRENT ENGINE DATA, OPERA-

TION, Subaru Select Monitor.>

Connector & terminal

(E130) No. 1 — Chassis ground:

Is the “Oil level switch” signal

displayed in Subaru Select

Monitor HIGH?

Replace the oil

level switch. <Ref.

to LU(w/o STI)-54,

REMOVAL, Oil

Level Switch.>

Go to step 7.

Step Check Yes No

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LU(w/o STI)-71

Oil Level Switch

LUBRICATION

2. OTHER INSPECTIONS

1) Check that the oil level switch does not have deformation, cracks, or damage.

2) Check the oil level switch installation part for oil leakage and oil seepage.

7 CHECK SECURE CONNECTION OF CON-

NECTOR BETWEEN ENGINE CONTROL

MODULE (ECM) AND ENGINE HARNESS.

Is there any insecure connec-

tion?

Repair the connec-

tion condition.

Then, to disable

the low engine oil

warning display,

install the spare

fuse at the delivery

mode fuse in the

main fuse box.

Then turn the igni-

tion switch to ON

(engine OFF)

again to confirm

the low engine oil

warning is not dis-

played. Remove

the spare fuse

installed to finish.

NOTE:

The engine oil level

switch is normal if

the low engine oil

level warning is not

displayed with the

delivery mode fuse

inserted.

Go to step 8.

8 CHECK ENGINE HARNESS.

1) Disconnect the engine control module

(ECM) side connector.

2) Set the ST between the engine control mod-

ule (ECM) and engine harness. <Ref. to EN(w/o

STI)(diag)-6, CAUTION, General Description.>

3) Disconnect the connector between the

engine harness and the oil level switch.

4) Measure the resistance between connector

terminals.

Connector & terminal

(B158) No. 44 — (B130) No. 1:

Is the resistance less than 1 Ω? Replace the

engine control

module (ECM).

<Ref. to FU(w/o

STI)-132,

REMOVAL, Engine

Control Module

(ECM).>

Repair or replace

the open circuit of

engine harness.

Step Check Yes No

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